Friday mosque, Yazd

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 36°.
• Contains one regular pentagon.
• Contains one regular 10-pointed star polygon with vertex angle of 72°.
• Contains one regular 10-pointed star polygon with vertex angle of 108°.
• There are 6 non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has three finite interlaces and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 201 polygons.

1. Page 99, bottom left (Friday mosque, Yazd, Iran. Prayer hall, colouring from here,) of Degeorge, G ́erard and Porter. The Art of the Islamic Tile, Paris, 2002. ISBN 208010876. [degeorge2] {}(1325-34AD, 725-34AH)
2. Figure 26. Left-hand motif (No colouring in the original) of A. J. Lee. Islamic star patterns, Muqarnas vol. 4. pp182-197 Pressmark PP.8.M, 1987. [lee] {Important paper on star patterns} Available on Internet.

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